This category is within the scope of WikiProject Tambayan Philippines, a collaborative effort to improve the coverage of topics related to the Philippines on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Tambayan PhilippinesWikipedia:WikiProject Tambayan PhilippinesTemplate:WikiProject Tambayan PhilippinesPhilippine-related articles
This category is within the scope of WikiProject Water, a collaborative effort to improve the coverage of Water supply-related subjects on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.WaterWikipedia:WikiProject WaterTemplate:WikiProject WaterWater articles
This category is within the scope of WikiProject Sanitation, a collaborative effort to improve the coverage of Sanitation on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.SanitationWikipedia:WikiProject SanitationTemplate:WikiProject Sanitationsanitation articles
Start a discussion about improving the Category:Sewage treatment plants in the Philippines page
